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SQL & data modeling / Article

Feature flags with one Postgres table | Muhammad Azeez

The author describes implementing feature flags as rows in a single PostgreSQL key-value table instead of running a dedicated flag service. Lookups check a business-level override before the global value, and the override fails closed when the read fails rather than falling back to the global setting.

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Why it’s in the collection

Offers a minimal schema and explicit precedence and fail-closed rules for teams that want flags without adding another service.

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Found on Hacker News 1

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